The proof is as follows:
| Statement | Reason |
|---|---|
| 1. T is the midpoint of $\overline{SU}$ | Given |
| 2. $\overline{UW} \cong \overline{SV}$ | Given |
| 3. $\overline{TW} \cong \overline{TV}$ | Given |
| 4. $\overline{ST} \cong \overline{TU}$ | Definition of Midpoint |
| 5. $\triangle STV \cong \triangle UTW$ | SSS Congruence Postulate |